Concerning contango and backwardation, I have seen that several people have doubts. When a spread is above zero, is it in contango or backwardation? It depends. It depends on how that spread is constructed David CarliI am a macroeconomic and financial analyst with over 30 years’ experience, including two years as a fund manager. I specialise in currencies and commodities, and I am the author of several successful books on trading, macroeconomics, and financial markets.